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< 1 2 3 4 5 6Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 56224 | Skibidus and Amog'u | brute force constructive algorithms implementation strings | Statement | A | Codeforces Round 1003 (Div. 4) {2065} | PROGRAMMING | Video Tutorial | ||
| 2003 | Bro Thinks He's Him | combinatorics data structures dp matrices | Statement | H | Codeforces Round 1003 (Div. 4) {2065} | PROGRAMMING | Video Tutorial | ||
| 12143 | Skibidus and Rizz | constructive algorithms greedy | Statement | E | Codeforces Round 1003 (Div. 4) {2065} | PROGRAMMING | Video Tutorial | ||
| 42497 | Skibidus and Ohio | strings | Statement | B | Codeforces Round 1003 (Div. 4) {2065} | PROGRAMMING | Video Tutorial | ||
| 1527 | Mascot Naming | brute force greedy strings | Statement | F | European Championship 2025 - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {2068} | PROGRAMMING | 140239 | ||
| 7146 | Palindrome Shuffle | binary search greedy hashing strings two pointers | Statement | D | Educational Codeforces Round 174 (Rated for Div. 2) {2069} | PROGRAMMING | 139774 | ||
| 1937 | A, B, AB and BA | constructive algorithms greedy sortings strings | Statement | E | Educational Codeforces Round 174 (Rated for Div. 2) {2069} | PROGRAMMING | 139774 | ||
| 374 | Friends and Pizza | Statement | F | Educational Codeforces Round 175 (Rated for Div. 2) {2070} | PROGRAMMING | Video Tutorial | |||
| 1884 | Game with Binary String | data structures divide and conquer games greedy math | Statement | E | Educational Codeforces Round 175 (Rated for Div. 2) {2070} | PROGRAMMING | Video Tutorial | ||
| 27970 | The Play Never Ends | math number theory | Statement | A | Codeforces Round 1007 (Div. 2) {2071} | PROGRAMMING | 500.0 | Codeforces Round 1007 (Div. 2) Editorial | |
| 31187 | Having Been a Treasurer in the Past, I Help Goblins Deceive | combinatorics constructive algorithms strings | Statement | B | Codeforces Round 1006 (Div. 3) {2072} | PROGRAMMING | Codeforces Round 1006 (Div. 3) Editorial | ||
| 44743 | Draw a Square | implementation | Statement | A | Codeforces Round 1009 (Div. 3) {2074} | PROGRAMMING | Codeforces Round 1009 (Div. 3) — Editorial | ||
| 23389 | Final Verdict | greedy math | Statement | A | Codeforces Round 1008 (Div. 2) {2078} | PROGRAMMING | 500.0 | Codeforces Round 1008 (Div. 1, Div. 2) Editorial | |
| 16834 | MIN = GCD | greedy math | Statement | B | Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2) {2084} | PROGRAMMING | 1000.0 | 141155 | |
| 23743 | Serval and String Theory | constructive algorithms implementation | Statement | A | Codeforces Round 1011 (Div. 2) {2085} | PROGRAMMING | 500.0 | Codeforces Round #1011 (Div. 2) Editorial | |
| 8497 | Even String | combinatorics dp math strings | Statement | D | Educational Codeforces Round 177 (Rated for Div. 2) {2086} | PROGRAMMING | Educational Codeforces Round 177 Editorial | ||
| 267 | Uppercase or Lowercase? | *special *special interactive | Statement | D | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 16672 | Pushing Balls | implementation | Statement | B | Codeforces Round 1012 (Div. 2) {2090} | PROGRAMMING | 1000.0 | Codeforces Round 1012 (Div.1, Div. 2, based on THUPC 2025 — Finals) Editorial | |
| 39244 | Olympiad Date | greedy strings | Statement | A | Codeforces Round 1013 (Div. 3) {2091} | PROGRAMMING | Codeforces Round 1013 (Div. 3) Editorial | ||
| 6947 | Mishkin Energizer | brute force constructive algorithms greedy implementation strings | Statement | D | Codeforces Round 1014 (Div. 2) {2092} | PROGRAMMING | 1750.0 | Codeforces Round #1014 (Div. 2) Editorial | |
| 433 | Andryusha and CCB | brute force constructive algorithms greedy math number theory strings | Statement | F | Codeforces Round 1014 (Div. 2) {2092} | PROGRAMMING | 3000.0 | Codeforces Round #1014 (Div. 2) Editorial | |
| 25127 | Lady Bug | implementation math | Statement | B | Codeforces Round 1014 (Div. 2) {2092} | PROGRAMMING | 750.0 | Codeforces Round #1014 (Div. 2) Editorial | |
| 3880 | Shorten the Array | binary search brute force data structures dfs and similar greedy strings trees two pointers | Statement | G | Codeforces Round 1016 (Div. 3) {2093} | PROGRAMMING | Codeforces Round 1016 (Div. 3) Editorial | ||
| 5945 | Hackers and Neural Networks | bitmasks brute force greedy | Statement | F | Codeforces Round 1016 (Div. 3) {2093} | PROGRAMMING | Codeforces Round 1016 (Div. 3) Editorial | ||
| 41124 | Ideal Generator | math | Statement | A | Codeforces Round 1016 (Div. 3) {2093} | PROGRAMMING | Codeforces Round 1016 (Div. 3) Editorial | ||
| 31188 | Simple Repetition | math number theory | Statement | C | Codeforces Round 1016 (Div. 3) {2093} | PROGRAMMING | Codeforces Round 1016 (Div. 3) Editorial | ||
| 24207 | Tung Tung Sahur | greedy strings two pointers | Statement | D | Codeforces Round 1017 (Div. 4) {2094} | PROGRAMMING | Codeforces Round 1017 (Div. 4) Editorial | ||
| 57074 | Trippi Troppi | strings | Statement | A | Codeforces Round 1017 (Div. 4) {2094} | PROGRAMMING | Codeforces Round 1017 (Div. 4) Editorial | ||
| 559 | Homework | bitmasks math matrices | Statement | D | Codeforces Round 1021 (Div. 1) {2097} | PROGRAMMING | 2000.0 | 142316 | |
| 8760 | Sports Betting | math sortings | Statement | A | Codeforces Round 1021 (Div. 1) {2097} | PROGRAMMING | 500.0 | 142316 | |
| 21735 | Dinner Time | constructive algorithms math | Statement | A | Codeforces Round 1024 (Div. 2) {2102} | PROGRAMMING | 250.0 | 142788 | |
| 20061 | The Picky Cat | sortings | Statement | B | Codeforces Round 1024 (Div. 2) {2102} | PROGRAMMING | 500.0 | 142788 | |
| 10818 | Median Splits | dp greedy | Statement | C | Codeforces Round 1019 (Div. 2) {2103} | PROGRAMMING | 1500.0 | 142149 | |
| 17865 | Binary Typewriter | greedy math | Statement | B | Codeforces Round 1019 (Div. 2) {2103} | PROGRAMMING | 1000.0 | 142149 | |
| 8236 | Unpleasant Strings | binary search data structures dp greedy strings | Statement | E | Educational Codeforces Round 178 (Rated for Div. 2) {2104} | PROGRAMMING | Educational Codeforces Round 178 Editorial | ||
| 734 | Numbers and Strings | brute force dfs and similar dp implementation math | Statement | F | Educational Codeforces Round 178 (Rated for Div. 2) {2104} | PROGRAMMING | Educational Codeforces Round 178 Editorial | ||
| 36637 | Dr. TC | brute force math | Statement | A | Codeforces Round 1020 (Div. 3) {2106} | PROGRAMMING | Codeforces Round 1020 (Div. 3) Editorial | ||
| 4478 | Goblin | dp dsu greedy math | Statement | F | Codeforces Round 1020 (Div. 3) {2106} | PROGRAMMING | Codeforces Round 1020 (Div. 3) Editorial | ||
| 1812 | Binary String Wowee | combinatorics dp strings | Statement | E | Codeforces Round 1025 (Div. 2) {2109} | PROGRAMMING | 2500.0 | Codeforces Round 1025 (Div. 2) Editorial | |
| 27092 | It's Time To Duel | implementation | Statement | A | Codeforces Round 1025 (Div. 2) {2109} | PROGRAMMING | 500.0 | Codeforces Round 1025 (Div. 2) Editorial | |
| 2771 | Melody | dfs and similar graphs | Statement | E | Codeforces Round 1026 (Div. 2) {2110} | PROGRAMMING | 2250.0 | Codeforces Round 1026 (Div. 2) Editorial | |
| 27681 | Down with Brackets | strings | Statement | B | Codeforces Round 1026 (Div. 2) {2110} | PROGRAMMING | 750.0 | Codeforces Round 1026 (Div. 2) Editorial | |
| 5454 | Changing the String | binary search data structures greedy implementation sortings strings | Statement | E | Educational Codeforces Round 179 (Rated for Div. 2) {2111} | PROGRAMMING | Educational Codeforces Round 179 Editorial | ||
| 14843 | Good Start | math | Statement | B | Codeforces Round 1031 (Div. 2) {2113} | PROGRAMMING | 750.0 | Codeforces Round #1031 Editorial | |
| 2057 | Build an Array | bitmasks dp math number theory | Statement | G | Codeforces Round 1027 (Div. 3) {2114} | PROGRAMMING | 143268 | ||
| 30831 | Not Quite a Palindromic String | greedy greedy math math | Statement | B | Codeforces Round 1027 (Div. 3) {2114} | PROGRAMMING | 143268 | ||
| 22412 | Retaliation | binary search math | Statement | D | Codeforces Round 1029 (Div. 3) {2117} | PROGRAMMING | Codeforces Round 1029 (Div. 3) Editorial | ||
| 38428 | False Alarm | greedy implementation | Statement | A | Codeforces Round 1029 (Div. 3) {2117} | PROGRAMMING | Codeforces Round 1029 (Div. 3) Editorial | ||
| 297 | Shifts and Swaps | graphs hashing strings | Statement | F | Codeforces Round 1030 (Div. 2) {2118} | PROGRAMMING | 3500.0 | Codeforces Round 1030 (Div. 2) Editorial | |
| 18569 | Line Segments | geometry greedy math | Statement | B | Codeforces Round 1035 (Div. 2) {2119} | PROGRAMMING | 1000.0 | Codeforces Round 1035 (Div. 2) Editorial | |
| 20491 | Square of Rectangles | geometry math | Statement | A | Codeforces Round 1033 (Div. 2) and CodeNite 2025 {2120} | PROGRAMMING | 500.0 | Codeforces Round 1033 (Div. 2) and CodeNite 2025 Editorial | |
| 32686 | Above the Clouds | constructive algorithms greedy strings | Statement | B | Codeforces Round 1032 (Div. 3) {2121} | PROGRAMMING | Codeforces Round 1032 (Div. 3) Editorial | ||
| 5432 | Gangsta | data structures divide and conquer math sortings | Statement | G | Codeforces Round 1032 (Div. 3) {2121} | PROGRAMMING | Codeforces Round 1032 (Div. 3) Editorial | ||
| 14932 | Sponsor of Your Problems | greedy strings | Statement | E | Codeforces Round 1032 (Div. 3) {2121} | PROGRAMMING | Codeforces Round 1032 (Div. 3) Editorial | ||
| 19755 | Greedy Grid | constructive algorithms greedy | Statement | A | Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2) {2122} | PROGRAMMING | 500.0 | Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2) Editorial | |
| 3301 | Modular Sorting | brute force data structures math number theory | Statement | G | Codeforces Round 1034 (Div. 3) {2123} | PROGRAMMING | Codeforces Round 1034 (Div. 3) Editorial | ||
| 22220 | Binary String Battle | constructive algorithms games greedy | Statement | D | Codeforces Round 1034 (Div. 3) {2123} | PROGRAMMING | Codeforces Round 1034 (Div. 3) Editorial | ||
| 35202 | Tournament | greedy | Statement | B | Codeforces Round 1034 (Div. 3) {2123} | PROGRAMMING | Codeforces Round 1034 (Div. 3) Editorial | ||
| 42069 | Blackboard Game | math | Statement | A | Codeforces Round 1034 (Div. 3) {2123} | PROGRAMMING | Codeforces Round 1034 (Div. 3) Editorial | ||
| 19647 | Deranged Deletions | constructive algorithms sortings | Statement | A | EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2) {2124} | PROGRAMMING | 500.0 | EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2) Editorial | |
| 8407 | Make a Palindrome | greedy sortings | Statement | D | EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2) {2124} | PROGRAMMING | 1750.0 | EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2) Editorial | |
| 28290 | Difficult Contest | constructive algorithms implementation sortings strings | Statement | A | Educational Codeforces Round 181 (Rated for Div. 2) {2125} | PROGRAMMING | Educational Codeforces Round 181 Editorial | ||
| 17280 | G-C-D, Unlucky! | math number theory | Statement | E | Codeforces Round 1037 (Div. 3) {2126} | PROGRAMMING | 144845 | ||
| 20124 | Mix Mex Max | constructive algorithms greedy math | Statement | A | Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} | PROGRAMMING | 500.0 | Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial | |
| 389 | Strict Triangle | graphs shortest paths | Statement | F | Codeforces Round 1039 (Div. 2) {2128} | PROGRAMMING | 4000.0 | Codeforces Round #1039 — Editorial | |
| 21094 | Leftmost Below | greedy | Statement | C | Codeforces Round 1039 (Div. 2) {2128} | PROGRAMMING | 1250.0 | Codeforces Round #1039 — Editorial | |
| 1733 | Interactive RBS (Hard Version) | binary search bitmasks constructive algorithms dp interactive | Statement | C3 | Codeforces Round 1040 (Div. 1) {2129} | PROGRAMMING | 750.0 | Codeforces Round 1040 (Div. 1, Div. 2) Editorial | |
| 4017 | Interactive RBS (Easy Version) | binary search bitmasks constructive algorithms interactive | Statement | C1 | Codeforces Round 1040 (Div. 1) {2129} | PROGRAMMING | 750.0 | Codeforces Round 1040 (Div. 1, Div. 2) Editorial | |
| 2629 | Interactive RBS (Medium Version) | binary search bitmasks constructive algorithms interactive | Statement | C2 | Codeforces Round 1040 (Div. 1) {2129} | PROGRAMMING | 750.0 | Codeforces Round 1040 (Div. 1, Div. 2) Editorial | |
| 4782 | Unjust Binary Life | binary search binary search data structures greedy greedy math two pointers | Statement | F | Codeforces Round 1042 (Div. 3) {2131} | PROGRAMMING | Codeforces Round 1042 (Div. 3) Editorial | ||
| 17472 | Adjacent XOR | greedy | Statement | E | Codeforces Round 1042 (Div. 3) {2131} | PROGRAMMING | Codeforces Round 1042 (Div. 3) Editorial | ||
| 22014 | Make it Equal | math number theory | Statement | C | Codeforces Round 1042 (Div. 3) {2131} | PROGRAMMING | Codeforces Round 1042 (Div. 3) Editorial | ||
| 44077 | Homework | brute force implementation strings | Statement | A | Codeforces Round 1043 (Div. 3) {2132} | PROGRAMMING | Codeforces Round 1043 (Div. 3) Editorial | ||
| 519 | Famous Choreographer | hashing strings | Statement | G | Codeforces Round 1043 (Div. 3) {2132} | PROGRAMMING | Codeforces Round 1043 (Div. 3) Editorial | ||
| 31479 | Redstone? | brute force implementation math | Statement | A | Codeforces Round 1044 (Div. 2) {2133} | PROGRAMMING | 500.0 | Codeforces Round 1044 (Div. 2) Editorial | |
| 27001 | Painting With Two Colors | constructive algorithms implementation math | Statement | A | Codeforces Round 1045 (Div. 2) {2134} | PROGRAMMING | 500.0 | 145832 | |
| 393 | Beyond the Palindrome (Easy Version) | combinatorics dp math | Statement | E1 | Codeforces Round 1046 (Div. 1) {2135} | PROGRAMMING | 3000.0 | Codeforces Round 1046 (Div. 1, Div. 2) Editorial | |
| 173 | Beyond the Palindrome (Hard Version) | combinatorics dp math number theory | Statement | E2 | Codeforces Round 1046 (Div. 1) {2135} | PROGRAMMING | 2000.0 | Codeforces Round 1046 (Div. 1, Div. 2) Editorial | |
| 26526 | In the Dream | greedy math | Statement | A | Codeforces Round 1046 (Div. 2) {2136} | PROGRAMMING | 500.0 | Codeforces Round 1046 (Div. 1, Div. 2) Editorial | |
| 3460 | Maple and Tree Beauty (Hard Version) | bitmasks brute force dfs and similar divide and conquer dp fft trees | Statement | C2 | Codeforces Round 1048 (Div. 1) {2138} | PROGRAMMING | 750.0 | Codeforces Round 1048 (Div. 1, Div. 2) Editorial | |
| 5562 | Maple and Tree Beauty (Easy Version) | dfs and similar dp graphs trees | Statement | C1 | Codeforces Round 1048 (Div. 1) {2138} | PROGRAMMING | 1250.0 | Codeforces Round 1048 (Div. 1, Div. 2) Editorial | |
| 22668 | Shift Sort | greedy sortings strings | Statement | A | Codeforces Round 1049 (Div. 2) {2140} | PROGRAMMING | 500.0 | Codeforces Round 1049 (Div. 2) Editorial | |
| 259 | Perfect Cut | *special dp greedy | Statement | E | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 2037 | Make Good | constructive algorithms math strings | Statement | E | Codeforces Round 1051 (Div. 2) {2143} | PROGRAMMING | 2500.0 | Codeforces Round 1051 (Div. 2) Editorial | |
| 21134 | All Lengths Subtraction | two pointers | Statement | A | Codeforces Round 1051 (Div. 2) {2143} | PROGRAMMING | 500.0 | Codeforces Round 1051 (Div. 2) Editorial | |
| 1043 | Bracket Groups | constructive algorithms dp strings | Statement | F | Educational Codeforces Round 182 (Rated for Div. 2) {2144} | PROGRAMMING | Educational Codeforces Round 182 Editorial | ||
| 15853 | Monocarp's String | binary search greedy strings | Statement | C | Educational Codeforces Round 183 (Rated for Div. 2) {2145} | PROGRAMMING | Educational Codeforces Round 183 Editorial | ||
| 16328 | Merging the Sets | greedy implementation | Statement | B | Codeforces Round 1052 (Div. 2) {2146} | PROGRAMMING | 1000.0 | Codeforces Round 1052 (Div. 2) Editorial | |
| 10356 | Rabbits | 2-sat dp graphs greedy implementation | Statement | C | Codeforces Global Round 29 (Div. 1 + Div. 2) {2147} | PROGRAMMING | 1500.0 | ||
| 19775 | A and B | strings | Statement | D | Codeforces Round 1054 (Div. 3) {2149} | PROGRAMMING | __rose | ||
| 197 | Counting Is Fun: The Finale | Statement | G | Codeforces Round 1053 (Div. 1) {2150} | PROGRAMMING | 4250.0 | Editorial of Codeforces Round 1053 (Div. 1, Div. 2) | ||
| 18274 | Incremental Subarray | strings | Statement | A | Codeforces Round 1053 (Div. 2) {2151} | PROGRAMMING | 500.0 | Editorial of Codeforces Round 1053 (Div. 1, Div. 2) | |
| 22872 | Bitwise Reversion | bitmasks | Statement | B | Codeforces Round 1057 (Div. 2) {2153} | PROGRAMMING | 750.0 | Codeforces Round 1057 (Div. 2) Editorial | |
| 17443 | Abraham's Great Escape | constructive algorithms graphs | Statement | B | Codeforces Round 1056 (Div. 2) {2155} | PROGRAMMING | 1000.0 | Codeforces Round 1056 (Div. 2) Editorial | |
| 3370 | Palindrome Flipping | brute force constructive algorithms implementation strings | Statement | D | Codeforces Round 1067 (Div. 2) {2158} | PROGRAMMING | 2000.0 | Codeforces Round 1067 (Div. 2) Editorial | |
| 15453 | Reverse XOR | bitmasks | Statement | C | Codeforces Round 1058 (Div. 2) {2160} | PROGRAMMING | 1250.0 | Codeforces Round 1058 Editorial | |
| 5475 | Make Connected | brute force dsu implementation | Statement | B | Pinely Round 5 (Div. 1 + Div. 2) {2161} | PROGRAMMING | 1000.0 | ||
| 797 | Left is Always Right | combinatorics math | Statement | E | Pinely Round 5 (Div. 1 + Div. 2) {2161} | PROGRAMMING | 3000.0 | ||
| 19844 | Souvlaki VS. Kalamaki | math sortings | Statement | A | Codeforces Round 1063 (Div. 2) {2163} | PROGRAMMING | 500.0 | Codeforces Round 1063 Editorial | |
| 5343 | Copy String | binary search greedy implementation strings | Statement | D | Codeforces Global Round 30 (Div. 1 + Div. 2) {2164} | PROGRAMMING | 1750.0 | Codeforces Global Round 30 Editorial | |
| 21364 | Sequence Game | brute force greedy | Statement | A | Codeforces Global Round 30 (Div. 1 + Div. 2) {2164} | PROGRAMMING | 500.0 | Codeforces Global Round 30 Editorial | |
| 47 | PalindromePalindrome | data structures strings | Statement | H | Codeforces Global Round 30 (Div. 1 + Div. 2) {2164} | PROGRAMMING | 5500.0 | Codeforces Global Round 30 Editorial | |
| 23266 | Same Difference | brute force dp strings | Statement | A | Codeforces Round 1064 (Div. 2) {2166} | PROGRAMMING | 500.0 | Codeforces Round 1064 (Div. 1, Div. 2) Editorial | |
| 59994 | Square? | math | Statement | A | Codeforces Round 1062 (Div. 4) {2167} | PROGRAMMING | Arpa Video Tutorial | ||
| 53010 | Your Name | sortings strings | Statement | B | Codeforces Round 1062 (Div. 4) {2167} | PROGRAMMING | Arpa Video Tutorial | ||
| 16488 | Drifting Away | implementation implementation implementation implementation implementation | Statement | B | Educational Codeforces Round 184 (Rated for Div. 2) {2169} | PROGRAMMING | Educational Codeforces Round 184 Editorial | ||
| 2382 | Binary Strings and Blocks | combinatorics dp | Statement | E | Educational Codeforces Round 185 (Rated for Div. 2) {2170} | PROGRAMMING | Educational Codeforces Round 185 Editorial | ||
| 7383 | Rae Taylor and Trees (hard version) | binary search constructive algorithms data structures dp dsu implementation trees | Statement | F | Codeforces Round 1065 (Div. 3) {2171} | PROGRAMMING | Codeforces Round 1065 (Div. 3) Editorial | ||
| 11972 | Rae Taylor and Trees (easy version) | binary search data structures dp dsu greedy implementation trees | Statement | D | Codeforces Round 1065 (Div. 3) {2171} | PROGRAMMING | Codeforces Round 1065 (Div. 3) Editorial | ||
| 71 | Gene Editor | Statement | G | 2025 ICPC Asia Taichung Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2172} | PROGRAMMING | ||||
| 14788 | Needle in a Haystack | greedy strings two pointers | Statement | A | Codeforces Round 1069 (Div. 1) {2174} | PROGRAMMING | 500.0 | Codeforces Round 1069 Editorial | |
| 23369 | Optimal Shifts | bitmasks greedy strings | Statement | B | Codeforces Round 1070 (Div. 2) {2176} | PROGRAMMING | 1000.0 | Codeforces Round 1070 (Div.2) Editorial | |
| 26176 | Yes or Yes | brute force greedy strings | Statement | A | Good Bye 2025 {2178} | PROGRAMMING | 500.0 | ||
| 21992 | Impost or Sus | greedy implementation strings | Statement | B | Good Bye 2025 {2178} | PROGRAMMING | 750.0 | ||
| 5912 | Blackslex and Girls | constructive algorithms geometry math | Statement | E | Codeforces Round 1071 (Div. 3) {2179} | PROGRAMMING | Codeforces Round 1071 (Div. 3) Editorial | ||
| 34946 | Blackslex and Password | math strings | Statement | A | Codeforces Round 1071 (Div. 3) {2179} | PROGRAMMING | Codeforces Round 1071 (Div. 3) Editorial | ||
| 24900 | Ashmal | greedy strings | Statement | B | Codeforces Global Round 31 (Div. 1 + Div. 2) {2180} | PROGRAMMING | 750.0 | Codeforces Global Round 31 | |
| 3866 | Alphabet City | binary search math strings | Statement | A | 2025-2026 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2181} | PROGRAMMING | Tutorial | ||
| 3633 | Medical Parity | dp | Statement | M | 2025-2026 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2181} | PROGRAMMING | Tutorial | ||
| 25799 | New Year String | greedy implementation strings | Statement | A | Educational Codeforces Round 186 (Rated for Div. 2) {2182} | PROGRAMMING | Educational Codeforces Round 186 Editorial | ||
| 1152 | Jumping Man | combinatorics data structures dp trees | Statement | F | Hello 2026 {2183} | PROGRAMMING | 2750.0 | ||
| 2004 | Little String (Hard Version) | binary search combinatorics dp greedy math number theory | Statement | D2 | Codeforces Round 1075 (Div. 2) {2189} | PROGRAMMING | 750.0 | Codeforces Round 1075 (Div. 2) Editorial | |
| 4087 | Little String (Easy Version) | combinatorics dp math | Statement | D1 | Codeforces Round 1075 (Div. 2) {2189} | PROGRAMMING | 2000.0 | Codeforces Round 1075 (Div. 2) Editorial | |
| 868 | Majority Wins? | dp greedy math strings | Statement | E | Codeforces Round 1075 (Div. 2) {2189} | PROGRAMMING | 2500.0 | Codeforces Round 1075 (Div. 2) Editorial | |
| 11129 | Sub-RBS (Easy Version) | combinatorics constructive algorithms dp greedy strings two pointers | Statement | B1 | Codeforces Round 1073 (Div. 1) {2190} | PROGRAMMING | 750.0 | Codeforces Round 1073 (Div. 1, Div. 2) Editorial | |
| 3281 | Sub-RBS (Hard Version) | combinatorics dp games implementation matrices strings | Statement | B2 | Codeforces Round 1073 (Div. 1) {2190} | PROGRAMMING | 750.0 | Codeforces Round 1073 (Div. 1, Div. 2) Editorial | |
| 28328 | Array Coloring | constructive algorithms | Statement | A | Codeforces Round 1073 (Div. 2) {2191} | PROGRAMMING | 500.0 | Codeforces Round 1073 (Div. 1, Div. 2) Editorial | |
| 20476 | MEX Reordering | constructive algorithms sortings | Statement | B | Codeforces Round 1073 (Div. 2) {2191} | PROGRAMMING | 1000.0 | Codeforces Round 1073 (Div. 1, Div. 2) Editorial | |
| 18500 | String Rotation Game | brute force strings | Statement | A | Codeforces Round 1081 (Div. 2) {2192} | PROGRAMMING | 500.0 | Codeforces Round 1081 (Div. 2) Editorial | |
| 2200 | Swap to Rearrange | constructive algorithms dfs and similar graph matchings graphs greedy strings | Statement | E | Codeforces Round 1081 (Div. 2) {2192} | PROGRAMMING | 2250.0 | Codeforces Round 1081 (Div. 2) Editorial | |
| 15338 | Flipping Binary String | constructive algorithms strings | Statement | B | Codeforces Round 1081 (Div. 2) {2192} | PROGRAMMING | 1000.0 | Codeforces Round 1081 (Div. 2) Editorial | |
| 43571 | DBMB and the Array | brute force math | Statement | A | Codeforces Round 1076 (Div. 3) {2193} | PROGRAMMING | Разбор Codeforces Round 1076 (Div. 3) | ||
| 1093 | Remove the Grail Tree | dfs and similar dp greedy trees | Statement | H | Codeforces Round 1076 (Div. 3) {2193} | PROGRAMMING | Разбор Codeforces Round 1076 (Div. 3) | ||
| 25940 | Heapify 1 | implementation | Statement | B | Codeforces Round 1080 (Div. 3) {2195} | PROGRAMMING | Codeforces Round 1080 (Div. 3) Editorial | ||
| 36747 | Sieve of Erato67henes | math | Statement | A | Codeforces Round 1080 (Div. 3) {2195} | PROGRAMMING | Codeforces Round 1080 (Div. 3) Editorial | ||
| 299 | Fuzzy Concatenation (Easy Version) | binary search bitmasks brute force data structures greedy string suffix structures | Statement | E1 | Codeforces Round 1079 (Div. 1) {2196} | PROGRAMMING | 2000.0 | Tutorial | |
| 213 | Fuzzy Concatenation (Hard version) | binary search data structures dp greedy string suffix structures | Statement | E2 | Codeforces Round 1079 (Div. 1) {2196} | PROGRAMMING | 1000.0 | Tutorial | |
| 16532 | Array and Permutation | implementation sortings two pointers | Statement | B | Codeforces Round 1079 (Div. 2) {2197} | PROGRAMMING | 1000.0 | ||
| 23277 | Specialty String | brute force greedy strings | Statement | C | Codeforces Round 1084 (Div. 3) {2200} | PROGRAMMING | Codeforces Round 1084 (Div. 3) Editorial | ||
| 1111 | Operation Permutation | combinatorics dp math probabilities | Statement | G | Codeforces Round 1084 (Div. 3) {2200} | PROGRAMMING | Codeforces Round 1084 (Div. 3) Editorial | ||
| 492 | Six Seven | divide and conquer math number theory strings trees | Statement | H | Codeforces Round 1084 (Div. 3) {2200} | PROGRAMMING | Codeforces Round 1084 (Div. 3) Editorial | ||
| 291 | ABBA Counting | fft math number theory strings | Statement | E | Codeforces Round 1082 (Div. 1) {2201} | PROGRAMMING | 3000.0 | Codeforces Round 1082 (Div. 1, Div. 2) Complete Editorial | |
| 11925 | ABAB Construction | greedy implementation | Statement | B | Codeforces Round 1082 (Div. 2) {2202} | PROGRAMMING | 1250.0 | Codeforces Round 1082 (Div. 1, Div. 2) Complete Editorial | |
| 16984 | Parkour Design | math | Statement | A | Codeforces Round 1082 (Div. 2) {2202} | PROGRAMMING | 750.0 | Codeforces Round 1082 (Div. 1, Div. 2) Complete Editorial | |
| 1674 | Simons and Dividing the Rhythm | dp string suffix structures strings | Statement | E | Codeforces Round 1083 (Div. 2) {2205} | PROGRAMMING | 2500.0 | Tutorial | |
| 51 | Deformed Balance | Statement | M | 2026 ICPC Asia Pacific Championship - Online Mirror (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2206} | PROGRAMMING | Tutorial (PDF) | |||
| 1745 | N-MEX (Constructive Version) | constructive algorithms greedy | Statement | E1 | Codeforces Round 1085 (Div. 1 + Div. 2) {2207} | PROGRAMMING | 1750.0 | Codeforces Round 1085 (Div. 1 + Div. 2) Editorial | |
| 14472 | 1-1 | greedy strings | Statement | A | Codeforces Round 1085 (Div. 1 + Div. 2) {2207} | PROGRAMMING | 750.0 | Codeforces Round 1085 (Div. 1 + Div. 2) Editorial | |
| 21327 | Bingo Candies | constructive algorithms math | Statement | A | Codeforces Round 1086 (Div. 2) {2208} | PROGRAMMING | 500.0 | Tutorial | |
| 1909 | A Trivial String Problem | dp strings | Statement | E | Codeforces Round 1087 (Div. 2) {2209} | PROGRAMMING | 2250.0 | Codeforces Round 1087 (Div. 2) Editorial | |
| 352 | Binary Strings are Simple? | constructive algorithms dsu interactive number theory | Statement | E | Codeforces Round 1089 (Div. 2) {2210} | PROGRAMMING | 2750.0 | Codeforces Round 1089 (Div. 2) Editorial | |
| 2193 | A Simple RBS Problem | constructive algorithms strings trees | Statement | D | Codeforces Round 1089 (Div. 2) {2210} | PROGRAMMING | 2250.0 | Codeforces Round 1089 (Div. 2) Editorial | |
| 313 | Rational Bubble Sort | geometry greedy | Statement | G | Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2) {2211} | PROGRAMMING | 3250.0 | Nebius Round 2 and Codeforces Round 1088 Editorial | |
| 24117 | The Equalizer | Statement | A | Codeforces Round 1091 (Div. 2) and CodeCraft 26 {2217} | PROGRAMMING | 500.0 | Tutorial | ||
| 11514 | Grid Covering | math number theory | Statement | C | Codeforces Round 1091 (Div. 2) and CodeCraft 26 {2217} | PROGRAMMING | 1500.0 | Tutorial | |
| 11573 | A Wonderful Contest | math | Statement | A | Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2) {2222} | PROGRAMMING | 500.0 | Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2) Editorial | |
| 6964 | Zhily and Bracket Swapping | constructive algorithms greedy | Statement | A | Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026) {2223} | PROGRAMMING | 500.0 | Codeforces Round 1097 (Div. 1, Div2, Based on Zhili Cup 2026) Tutorial | |
| 88 | Zhily and Colorful Strings | divide and conquer fft math | Statement | F | Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026) {2223} | PROGRAMMING | 4500.0 | Codeforces Round 1097 (Div. 1, Div2, Based on Zhili Cup 2026) Tutorial | |
| 317 | Zhily and Cycle | graphs greedy | Statement | D | Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026) {2223} | PROGRAMMING | 2500.0 | Codeforces Round 1097 (Div. 1, Div2, Based on Zhili Cup 2026) Tutorial | |
| 701 | String Cutting | binary search brute force greedy hashing string suffix structures strings | Statement | F | Educational Codeforces Round 189 (Rated for Div. 2) {2225} | PROGRAMMING | Tutorial | ||
| 2916 | Reserved Reversals | constructive algorithms dp greedy | Statement | D | Codeforces Round 1095 (Div. 2) {2226} | PROGRAMMING | 2000.0 | Codeforces Round 1095 (Div. 2) Editorial | |
| 168 | Stop Spot | strings trees | Statement | G | Codeforces Round 1095 (Div. 2) {2226} | PROGRAMMING | 2500.0 | Codeforces Round 1095 (Div. 2) Editorial | |
| 12531 | Palindromex | binary search brute force constructive algorithms data structures greedy implementation two pointers | Statement | D | Codeforces Round 1096 (Div. 3) {2227} | PROGRAMMING | Codeforces Round 1096 (Div. 3) — Editorial | ||
| 25727 | Party Monster | greedy | Statement | B | Codeforces Round 1096 (Div. 3) {2227} | PROGRAMMING | Codeforces Round 1096 (Div. 3) — Editorial | ||
| 28460 | Koshary | implementation math | Statement | A | Codeforces Round 1096 (Div. 3) {2227} | PROGRAMMING | Codeforces Round 1096 (Div. 3) — Editorial | ||
| 174 | Wowee Binary String | combinatorics dp strings | Statement | H | Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) {2229} | PROGRAMMING | 4000.0 | Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) Editorial | |
| 15463 | Digit String | greedy implementation math | Statement | B | Educational Codeforces Round 190 (Rated for Div. 2) {2230} | PROGRAMMING | Educational Codeforces Round 190 — Editorial | ||
| 22521 | Tatar TV Show | math strings | Statement | B | Codeforces Round 1103 (Div. 3) {2236} | PROGRAMMING |